Deferred Acquisition Costs and Deferred Sales Inducement Costs - Deferred Sales Inducement Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balances of and changes in DSIC
Beginning balance	$ 167	$ 185	$ 205
Capitalization of sales inducement costs		1	1
Amortization	(5)	(19)	(21)
Ending balance	162	167	185
Variable Annuities
Balances of and changes in DSIC
Beginning balance	151	166	183
Capitalization of sales inducement costs		1	1
Amortization	(4)	(16)	(18)
Ending balance	147	151	166
Fixed Annuities
Balances of and changes in DSIC
Beginning balance	16	19	22
Capitalization of sales inducement costs		0	0
Amortization	(1)	(3)	(3)
Ending balance	$ 15	$ 16	19
Previously Reported
Balances of and changes in DSIC
Beginning balance			189
Previously Reported | Variable Annuities
Balances of and changes in DSIC
Beginning balance			175
Previously Reported | Fixed Annuities
Balances of and changes in DSIC
Beginning balance			14
Adjustment
Balances of and changes in DSIC
Beginning balance			16
Adjustment | Variable Annuities
Balances of and changes in DSIC
Beginning balance			8
Adjustment | Fixed Annuities
Balances of and changes in DSIC
Beginning balance			$ 8